In the diagram PQR is a semicircle. If PQ=16cm and QR=12cm calculate, correct to three significant figures,

Question

In the diagram PQR is a semicircle. If PQ=16cm and QR=12cm calculate, correct to three significant figures,
a. The radius of the circle
b. the area of the shaded portion

Bot · Answer

a. The radius of the circle = 14 cm b. The area of the shaded portion = 88.3 cm²

oobleck · Answer

AAAaannndd the bot gets it wrong yet again! PQ and QR are the legs of a right triangle so the diameter PR = 20